Universite libre de Bruxelles (Dr Pieter Lagrou), in cooperation with a RePAST consortium partner Aristotle University of Thessaloniki, Chair of Jewish Studies (Dr Giorgos Antoniou), organized the summer school on troubled past of the Balkans. Several interesting walking tours, workshops and other academic activities took place between 25 June and 5 July 2021, including the lecture on revisionism in Bosnia-Herzegovina by Dr Rok Zupančič (University of Ljubljana). Dr Zupančič presented the most recent research findings of the RePAST research conducted in Bosnia-Herzegovina at the famous historical site of Yedi Kule (Heptapyrgion), now a museum in Thessaloniki, which for decades served as a notorius prison.